PROOF
HOUSE
AUDIO
Birmingham Mixing & Mastering — Heavy Metal, Rock & Funk
Recent Releases
Mixing & Mastering in Birmingham
Based in Sutton Coldfield, Birmingham, Proof House Audio provides professional mixing and mastering for heavy metal, thrash metal, rock and funk artists across the West Midlands and online worldwide. From a single to a full album, we combine analogue outboard processing with a digital workflow to support your sound and creative vision.
We believe in making this work accessible to as many people as possible. We offer limited means-based and pro-bono work for aspirational bands who are self-funded and/or with limited means. Please get in touch to start a conversation.
Equipment & Signal Chain
Every session is routed through a fully hybrid analog/digital chain, purpose-built for the highest fidelity across all delivery formats.
Near-field and far-field monitoring across multiple reference points, from studio-grade speakers to audiophile-grade headphones.
Premium AD/DA conversion maintaining the highest fidelity between the analog and digital domains.
Discrete analog summing delivering depth, dimension, and separation beyond the ITB mix bus.
Hand-selected cabling and precision patching to ensure zero signal degradation throughout the chain.
A comprehensive outboard mixing rig spanning vintage-inspired EQ, dynamics, and harmonic shaping for any genre.
A dedicated mastering chain built for translation across all formats — streaming, vinyl, broadcast, and spatial audio.
Full plugin suites and curated selections complement the analog chain for precision in-the-box processing.
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About
Julian Widdows
Founder, Director
Mixing & Mastering
Julian has spent the past 5 years quietly building a hybrid mixing and mastering studio with a hifi and analogue aesthetic.
His creative background spans 30 years producing interactive entertainment for Activision, Zynga, Take 2, and Codemasters — credits including Hostile Waters, Cold Winter, James Bond: 007, Fifty Cent: Blood on the Sand, and CSR Racing 2.
He now mixes and masters in the studio and oversees business management for Proof House Audio.
Freddie Widdows
Co-Founder
Production, Writing & Session Work
Freddie is the founder, songwriter, and lyricist of Exorcism, working in the UK underground thrash metal scene.
The band won Metal to the Masses in '25, with support slots for Hellbutcher and Vulture across Europe quickly following. Summer '26 brings shows across the UK, EU, and a slot at Burning Q festival.
A Grade 8 electric guitarist with classical training, he has just completed his BTEC. Whilst his heartland is extreme metal, his taste and writing span popular music, classic rock, and everything in between.
Noah Widdows
Co-Founder
Production, Writing & Session Work
Noah is the founder and songwriter of rock/funk band Tuff Luck, and has hundreds of live performances to his name across rock, doom metal, indie, and funk projects — including Choir of the Sun.
A Grade 8 with distinction electric guitarist and BTEC DDD* in guitar and music performance, he has just completed a degree in Music and Songwriting in Bristol.
Exorcism are managed by Mark Vieira, Parts Unknown Management — for enquiries about the band please email mark@markjvieira.com